package cn.sofwin.day0117;


import java.util.Scanner;

public class Test02 {
    public static void main(String[] args) {

        Scanner sc = new Scanner(System.in);
        int[] a = new int[10];

        int age = 0;
        age = sc.nextInt();
        String[] r ={"儿童","少年","青少年","青年","壮年","中年","中老年","老年","老老年","老老老年"};
      int b = age/10;
        System.out.println(r[b]);


    }
    }
